2012 Mercedes-Benz Tres Ejes Service and Repair Manual

This factory service and repair manual for the 2012 Mercedes-Benz Tres Ejes documents a cab-forward bus chassis with one door, classed as a non-school bus and listed in Base trim. Its engine is a 12.8L (781 cu in) inline-six diesel with a turbocharger. The manual deals with the heavy diesel, the driveline and running gear, and the chassis electrical system.

Engines covered

• 12.8L inline-six (781 cu in) — turbocharged, diesel

Body styles covered

• 1-door bus (non school), cab forward

Trims covered

• Base

Known issues on the 2012 Tres Ejes. Heavy diesel buses reward disciplined maintenance. The 12.8L six receives procedures and specifications for its turbocharger, fuel system and cooling circuit. Driveline, axles, steering and brakes are covered with torque values and service steps, and wiring diagrams and diagnostics trace the cab-forward chassis electrical system from the driver's controls outward.